[MERGED PR] Nucular Fishin' Engine

[ohjoy]

2) Neutron modulation is being handled relatively simply, in that neutrons are either low, medium, or high velocity and that collisions knock them down a velocity step (except when they hit fissile material and are consumed). Collision chance is currently determined by density, but I may look into other material properties as well. Also, plasma is going to act as an anti-moderator, accelerating neutrons, because that's kind wacky and very much in the flavour of plasma. No liquids though, because the liquid handling system sucks. This here is a gas cooled/moderated reactor

Oh, I didn't mean engaging with Goon's weird-ass liquid simulation. I meant treating the reactor like a reagent container and calculating properties based off its contents, the same way the TEG's blowers are reagent containers and change temperature, efficiency, etc. based off the reagents inside them.